Fig. 1

Percentage of anemia in the highly advanced CRC vs. locally advanced CRC groups. Both anemia and severe anemia, prior to surgery, were more common in the highly advanced CRC group compared to the locally advanced CRC group (46.4% vs. 28.6% and 17% vs. 4%, p=0.004 and p=0.002, respectively), demonstrating the correlation between preoperative anemia, at any level, and more advanced disease. CRC, colorectal cancer; Anemia—HgB < 13 g/dL for male or HgB < 12 g/dL for female; severe anemia—HgB < 10 g/dL